/**
 * Copyright 2007-2009 Vidar Svansson
 *
 * This file is part of JAdapter.
 *
 * JAdapter is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * JAdapter is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with JAdapter.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.jadapter.func;

import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;

/**
 * Static factory methods to minimize typing. For the lazy.
 *
 * @author Vidar Svansson
 * @since 0.3
 *
 */
public class Pairs {

	private Pairs(){
		throw new AssertionError("not to be instatiated");
	}
	
	
	public static <K, V> Map<K,V> map(Pair<? extends K,? extends V> ... pairs){
		Map<K,V> map = new HashMap<K,V>();
		for(Pair<? extends K,? extends V> pair : pairs){
			map.put(pair.x(), pair.y());
		}
		return map;
	}

	public static <K, V> Map<K,V> orderedMap(Pair<? extends K,? extends V> ... pairs){
		Map<K,V> map = new TreeMap<K,V>();
		for(Pair<? extends K,? extends V> pair : pairs){
			map.put(pair.x(), pair.y());
		}
		return map;
	}

    public static <K,V> Pair<K,V> pair(K k, V v){
		return new Pair<K,V>(k, v);
	}

    public static <K,V> Pair<K,V> _(K k, V v) {
		return new Pair<K, V>(k, v);
	}
	
}
